alt Hacker NewsIt doesn't. You already have a rat infestation issue. This doesn't cause it or further it. You think that little handful of kibble compares to the free calories available in an entire dumpster full of chicago deep dish pizza scrap that sits out in the open air day in day out?
My assumption is that it exacerbates it, by keeping the primary predator of rats well fed. Are you saying that cats have no impact on rat populations?